Preparation and x-ray crystal and molecular structure of {Mo2S8Ag4}(PPh3)4, a compound with a metal-sulfur cage

Autor:	E. Koeniger-Ahlborn, Achim Mueller, W. Hellmann, Hartmut Boegge
Rok vydání:	1979
Předmět:	Inorganic Chemistry Crystallography Aqueous solution Chemistry X-ray Molecule chemistry.chemical_element Physical and Theoretical Chemistry Triclinic crystal system Independent data Cage Sulfur Diffractometer
Zdroj:	Scopus-Elsevier
ISSN:	1520-510X 0020-1669
DOI:	10.1021/ic50198a050
Popis:	(MozS8Ag4)(PPh3)., has been prepared by the extraction of an aqueous solution of (NH4)2M~S4 with a solution of (C6HS)3P and AgN03 in CH2C12. The crystal and molecular structure of ( M O ~ S ~ A ~ ~ ) ( P P ~ ~ ) ~ was determined from single-crystal X-ray diffractometer data. The compound crystallizes in the triclinic space group PI with one molecule in the unit cell: a = 12.246 (2), 6 = 12.905 (2), c = 13.211 (2) A; 01 = 97.81 ( I ) , /3 = 113.31 (l) , y = 91.52 (1)'; V = 1892.1 A3; dcalcd = 1.69 g ~ m ~ . Anisotropic (except for the C atoms) least-squares refinement resulted in a conventional final R factor of 0.058 for 5183 independent data. The structure can be described as a cage (with a center of inversion), fused by two six-membered SAg2S2Mo rings which are connected by metalsulfur bonds. Mo (106.42 (10)-112.98 (9)') and Ag (distorted, angles varying between 92.62 (8) and 129.08 (8)') are tetrahedrally coordinated. M o S ~ ~ acts as a terdentate ligand.
Databáze:	OpenAIRE
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